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Accelerating polygon beam with peculiar features

Fang, Zhao-Xiang and Zhao, Hong-Ze and Chen, Yue and Lu, Rong-De and He, Li-Qun and Wang, Pei (2018) Accelerating polygon beam with peculiar features. Scientific Reports, 8 . Art. No. 8593. ISSN 2045-2322. PMCID PMC5988739; PMC6877511. doi:10.1038/s41598-018-26737-2.

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We report on a novel kind of accelerating beams that follow parabolic paths in free space. In fact, this accelerating peculiar polygon beam (APPB) is induced by the spectral phase symmetrization of the regular polygon beam (RPB) with five intensity beam (RPB) with five intensity peaks, and it preserves a peculiar symmetric structure during propagation. Specially, such beam not only exhibits autofocusing property, but also possesses two types of accelerating intensity maxima, i.e., the cusp and spot-point structure, which does not exist in the previously reported accelerating beams. We also provide a detailed insight into the theoretical origin and characteristics of this spatially accelerating beam through catastrophe theory. Moreover, an experimental scheme based on a digital micromirror device (DMD) with the binary spectral hologram is proposed to generate the target beam by precise modulation, and a longitudinal needle-like focus is observed around the focal region. The experimental results confirm the peculiar features presented in the theoretical findings. Further, the APPB is verified to exhibit self-healing property during propagation with either obstructed cusp or spot intensity maxima point reconstructing after a certain distance. Hence, we believe that the APPB will facilitate the applications in the areas of particle manipulation, material processing and optofludics.

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Chen, Yue0000-0002-7594-7587
Additional Information:© 2018 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit Received: 09 January 2018; Accepted: 09 May 2018; Published: 05 June 2018. This work is sponsored by the Anhui Natural Science Foundation (Grant No. 1708085MF143), National Natural Science Foundation of China (Grant No. 31670866, 60974038) and Popularization of Science Foundation of Chinese Academy of Sciences (KP2015C10). Author Contributions: Z.X.F. and R.D.L. conceived the idea, Z.X.F. and Y.C. carried out the simulation, Z.X.F. and H.Z.Z. constructed the experiment, Z.X.F. and H.Z.Z. analysed the results, L.Q.H. and R.D.L contributed to the discussions, and P.W. provided the overall supervision. All authors reviewed the manuscript. The authors declare no competing interests.
Funding AgencyGrant Number
Anhui Natural Science Foundation1708085MF143
National Natural Science Foundation of China31670866
National Natural Science Foundation of China60974038
Chinese Academy of SciencesKP2015C10
PubMed Central ID:PMC5988739; PMC6877511
Record Number:CaltechAUTHORS:20180611-103236726
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86962
Deposited By: Tony Diaz
Deposited On:11 Jun 2018 20:47
Last Modified:16 Feb 2022 23:20

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